Commit | Line | Data |
---|---|---|
61fab018 | 1 | #include <stdio.h> |
da32ed67 | 2 | #include "fakeasm.h" |
61fab018 | 3 | typedef unsigned char u8; |
da32ed67 | 4 | |
24abdcbb TG |
5 | u8 data[] = { |
6 | 0x84, 0x9d, 0xb0, 0x69, 0x9d, 0x84, 0x69, 0x58, | |
7 | 0x75, 0x8c, 0xb0, 0x69, 0x8c, 0x75, 0x69, 0x58 | |
8 | }; | |
06aad1ff TG |
9 | u8 i0; |
10 | u8 i1; | |
11 | u8 i2; | |
12 | u8 i3; | |
3b86ca43 TG |
13 | u8 x; |
14 | u8 t; | |
15 | u8 o; | |
965274e2 | 16 | void g(void) { |
46a8d83c | 17 | // g(i, x, t, o) -> t |
63363195 | 18 | u8 tmp; |
0f219114 | 19 | ANDI (t, 0x07) |
32632e61 | 20 | MOV (tmp, i2) |
63363195 | 21 | ANDI (tmp, 3) |
09cf3949 TG |
22 | TST (tmp) |
23 | BREQ (skip) | |
24 | SUBI (t, -8) | |
25 | skip: | |
c616f0c2 | 26 | t = data[t]; |
965274e2 | 27 | t = ((i3<<24|i2<<16|i1<<8|i0)*t) >> o; |
c616f0c2 TG |
28 | AND (t, x) |
29 | ANDI (t, 3) | |
46a8d83c | 30 | RET |
61fab018 TG |
31 | }; |
32 | ||
33 | int main(void) { | |
a1631438 TG |
34 | u8 n; |
35 | u8 s; | |
ab6fe4c2 | 36 | u8 acc; |
89f35588 | 37 | //TODO: clear all vars/registers |
5dd8b8ff | 38 | for (;;) { |
ab6fe4c2 | 39 | acc = 0; |
0eba146b | 40 | n = (i2<<2 | i1>>6); |
b67a2de3 | 41 | s = (i3<<7 | i2>>1); |
3b86ca43 TG |
42 | |
43 | //voice 1: | |
44 | LDI (x, 1) | |
45 | MOV (t, n) | |
46 | LDI (o, 12) | |
965274e2 | 47 | RCALL g(); |
46a8d83c | 48 | MOV (acc, t) |
3b86ca43 TG |
49 | |
50 | //voice 2: | |
51 | MOV (x, s) | |
1b023e92 | 52 | #define tmp o |
94c4920f TG |
53 | MOV (tmp, i2) |
54 | LSL (tmp) | |
55 | LSL (tmp) | |
56 | LSL (tmp) | |
57 | MOV (t, i1) | |
4b0b7dc5 TG |
58 | SWAP (t) |
59 | ANDI (t, 0xf) | |
60 | LSR (t) | |
94c4920f | 61 | OR (t, tmp) |
1b023e92 | 62 | #undef tmp |
23872091 | 63 | EOR (t, n) |
3b86ca43 | 64 | LDI (o, 10) |
965274e2 | 65 | RCALL g(); |
46a8d83c | 66 | ADD (acc, t) |
3b86ca43 TG |
67 | |
68 | //voice 3: | |
69 | x = s / 3; | |
d9218a18 | 70 | t = n + ((i3<<13 | i2<<5 | i1>>3) % 3); |
3b86ca43 | 71 | LDI (o, 10) |
965274e2 | 72 | RCALL g(); |
46a8d83c | 73 | ADD (acc, t) |
3b86ca43 TG |
74 | |
75 | //voice 4: | |
76 | x = s / 5; | |
704b11ab | 77 | t = 8 + n - ((i3<<14 | i2<<6 | i1>>2) % 3); |
3b86ca43 | 78 | LDI (o, 9) |
965274e2 | 79 | RCALL g(); |
46a8d83c | 80 | ADD (acc, t) |
bfce2f8c | 81 | |
ab6fe4c2 | 82 | putchar(acc<<4); |
89f35588 TG |
83 | #define tmp acc |
84 | LDI (tmp, 0) | |
85 | SUBI (i0, -1) | |
86 | ADC (i1, tmp, !i0) | |
87 | ADC (i2, tmp, !i0&&!i1) | |
88 | ADC (i3, tmp, !i0&&!i1&&!i2) | |
dd7bbc4a | 89 | #undef tmp |
fe9a76e4 | 90 | } |
61fab018 | 91 | } |